What is position based attribution?

In the Position Based attribution model, the touchpoints closest in time to the sale or conversion get most of the credit.

In the Position based attribution model, each touchpoint in the conversion path would receive equal credit for the sale

There is no such attribution model

In the Position Based attribution model, $40\%$ credit can be assigned to each the first and last interaction, and the remaining $20\%$ credit can distributed evenly to the middle interactions.